[FFmpeg-user] Transcode videos

[Felipe Lacerda]

Hello Moritz,

Thanks for your help, look my output when I tried to use command line that
you suggest me:

root at UPX-TI-Lab:/usr/local/WowzaMediaServer/content# ffmpeg -i
fff9957481ca4d9b4aec79c8c2418505_3-1.mp4 -c:a copy -c:v libx264 -profile:v
baseline -level 3.0 teste_2.mp4
ffmpeg version 0.8.9-6:0.8.9-0ubuntu0.13.04.1, Copyright (c) 2000-2013 the
Libav developers
  built on Nov  9 2013 19:09:48 with gcc 4.7.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a
future release. Please use avconv instead.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x214e1e0] max_analyze_duration reached

Seems stream 0 codec frame rate differs from container frame rate: 59.94
(60000/1001) -> 29.97 (2997/100)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'fff9957481ca4d9b4aec79c8c2418505_3-1.mp4':
  Metadata:
    major_brand     : M4V
    minor_version   : 1
    compatible_brands: M4V mp42isom
    creation_time   : 2012-11-22 03:20:12
  Duration: 00:31:00.43, start: 0.000000, bitrate: 381 kb/s
    Stream #0.0(eng): Video: h264 (High), yuv420p, 640x360 [PAR 1:1 DAR
16:9], 294 kb/s, 29.97 fps, 29.97 tbr, 29970 tbn, 59.94 tbc
    Metadata:
      creation_time   : 2012-11-22 03:20:12
    Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16, 61 kb/s
    Metadata:
      creation_time   : 2012-11-22 03:20:12
    Stream #0.2(und): Data: rtp  / 0x20707472, 13 kb/s
    Metadata:
      creation_time   : 2014-06-16 15:29:07
    Stream #0.3(und): Data: rtp  / 0x20707472, 8 kb/s
    Metadata:
      creation_time   : 2014-06-16 15:29:08
Unrecognized option 'c:a'
Failed to set value 'copy' for option 'c:a'

What can be happening?

Thanks,
Regards,

Felipe Lacerda Kneipp

UPX
http://www.upx.com.br

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2014-07-05 7:58 GMT-03:00 Moritz Barsnick <barsnick at gmx.net>:

> Hi Felipe,
>
> On Fri, Jul 04, 2014 at 10:51:33 -0300, Felipe Lacerda wrote:
>
> > My version of ffmpeg is 0.8.12
>
> Please get hold of a newer version of ffmpeg. This is quite old and
> unsupported, and some tips you get just won't apply to your version.
>
> > > > I need transcode the many videos for they run in old iPhone (3, 3gs)
> and
>
> Check the compatibility section in this FAQ:
>
> https://trac.ffmpeg.org/wiki/Encode/H.264#AdditionalInformationTips
>
> Quote:
> > If you want your videos to have highest compatibility with target
> > devices (older iOS versions or all Android devices):
> >
> >   -profile:v baseline -level 3.0
>
> So basically
> ffmpeg -i inputvideofile -c:a copy -c:v libx264 -profile:v baseline -level
> 3.0 outputvideofile
>
> Moritz
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>